Enable implicit phase-memory activation on every warden command.

Load coordination memory by default via ensure_memory_context on app bootstrap
and route/access flows; invalidate cache after episode writes. WARDEN_MEMORY=0
remains the opt-out. Document that warden memory activate is optional only.

src/warden/cli.py

@@ -54,6 +54,19 @@ console = Console()
 err = Console(stderr=True)
 
 
+@app.callback()
+def _bootstrap_memory(ctx: typer.Context) -> None:
+    """Implicitly load phase-memory for every warden command (opt-out: WARDEN_MEMORY=0)."""
+    if ctx.invoked_subcommand is None:
+        return
+    try:
+        from warden import memory as warden_memory
+
+        warden_memory.ensure_memory_context(implicit=True)
+    except Exception:  # noqa: BLE001 — memory must never block warden commands
+        return
+
+
 # ---------------------------------------------------------------------------
 # Helpers
 # ---------------------------------------------------------------------------
@@ -783,6 +796,12 @@ def route_find(
     limit: Annotated[int, typer.Option("--limit", help="Max matches")] = 5,
 ) -> None:
     """Rank routing scenarios by keyword overlap with the query."""
+    try:
+        from warden import memory as warden_memory
+
+        warden_memory.ensure_memory_context(need=query, implicit=True)
+    except Exception:  # noqa: BLE001
+        pass
     catalog = _load_catalog()
     matches = catalog.find(query, include_draft=all_entries, limit=limit)
 
@@ -1026,6 +1045,12 @@ def access(
     """
     from warden.access import expand_handoff, policy_gate_status
 
+    try:
+        from warden import memory as warden_memory
+
+        warden_memory.ensure_memory_context(need=need, implicit=True)
+    except Exception:  # noqa: BLE001
+        pass
     catalog = _load_catalog()
     matches = catalog.find(need, include_draft=all_entries, limit=1)
     if not matches:
@@ -1408,14 +1433,14 @@ def memory_activate(
     ] = None,
     output_json: Annotated[bool, typer.Option("--json", help="Output JSON")] = False,
 ) -> None:
-    """Activate bounded coordination memory for worker, operator, or agent sessions."""
+    """Inspect or refresh coordination memory (optional — memory loads by default)."""
     from warden import memory as warden_memory
 
     if not warden_memory.memory_available():
         err.print(f"[red]{warden_memory._PHASE_MEMORY_ERROR}[/red]")
         raise typer.Exit(2)
     try:
-        payload = warden_memory.activate(need=need, agent=agent)
+        payload = warden_memory.activate(need=need, agent=agent, implicit=False)
     except RuntimeError as e:
         err.print(f"[red]{e}[/red]")
         raise typer.Exit(2)